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Message-ID: <1341355030-20800-4-git-send-email-eduardo.valentin@ti.com>
Date: Wed, 4 Jul 2012 01:37:09 +0300
From: Eduardo Valentin <eduardo.valentin@...com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC: <devel@...verdev.osuosl.org>, <linux-kernel@...r.kernel.org>,
<j-keerthy@...com>, <grant.likely@...retlab.ca>,
<b-cousson@...com>, <kbaidarov@....rtsoft.ru>,
Eduardo Valentin <eduardo.valentin@...com>
Subject: [PATCH 3/4] staging: omap-thermal: add OMAP4 data structures
This patch adds the data structures needed for proper registration
of OMAP4 chips. This patch includes definitions for these chip versions:
. OMAP4430
. OMAP4460
. OMAP4470
Signed-off-by: Eduardo Valentin <eduardo.valentin@...com>
---
drivers/staging/omap-thermal/Kconfig | 14 ++
drivers/staging/omap-thermal/Makefile | 1 +
drivers/staging/omap-thermal/omap-bandgap.c | 14 ++
drivers/staging/omap-thermal/omap-bandgap.h | 10 +
drivers/staging/omap-thermal/omap4-thermal.c | 259 ++++++++++++++++++++++++++
5 files changed, 298 insertions(+), 0 deletions(-)
create mode 100644 drivers/staging/omap-thermal/omap4-thermal.c
diff --git a/drivers/staging/omap-thermal/Kconfig b/drivers/staging/omap-thermal/Kconfig
index b3996cc..e16f0bc 100644
--- a/drivers/staging/omap-thermal/Kconfig
+++ b/drivers/staging/omap-thermal/Kconfig
@@ -17,3 +17,17 @@ config OMAP_THERMAL
If you say yes here you want to get support for generic thermal
framework for the Texas Instruments OMAP4460+ on die bandgap
temperature sensor.
+
+config OMAP4_THERMAL
+ bool "Texas Instruments OMAP4 thermal support"
+ depends on OMAP_BANDGAP
+ depends on ARCH_OMAP4
+ help
+ If you say yes here you get thermal support for the Texas Instruments
+ OMAP4 SoC family. The current chip supported are:
+ - OMAP4430
+ - OMAP4460
+ - OMAP4470
+
+ This includes alert interrupts generation and also the TSHUT
+ support.
diff --git a/drivers/staging/omap-thermal/Makefile b/drivers/staging/omap-thermal/Makefile
index fcdf773..76f9c19 100644
--- a/drivers/staging/omap-thermal/Makefile
+++ b/drivers/staging/omap-thermal/Makefile
@@ -1,3 +1,4 @@
obj-$(CONFIG_OMAP_BANDGAP) += omap-thermal.o
omap-thermal-y := omap-bandgap.o
omap-thermal-$(CONFIG_OMAP_THERMAL) += omap-thermal-common.o
+omap-thermal-$(CONFIG_OMAP4_THERMAL) += omap4-thermal.o
diff --git a/drivers/staging/omap-thermal/omap-bandgap.c b/drivers/staging/omap-thermal/omap-bandgap.c
index 3b2cd87..cc0869a 100644
--- a/drivers/staging/omap-thermal/omap-bandgap.c
+++ b/drivers/staging/omap-thermal/omap-bandgap.c
@@ -1143,6 +1143,20 @@ static const struct dev_pm_ops omap_bandgap_dev_pm_ops = {
#endif
static const struct of_device_id of_omap_bandgap_match[] = {
+#ifdef CONFIG_OMAP4_THERMAL
+ {
+ .compatible = "ti,omap4430-bandgap",
+ .data = (void *)&omap4430_data,
+ },
+ {
+ .compatible = "ti,omap4460-bandgap",
+ .data = (void *)&omap4460_data,
+ },
+ {
+ .compatible = "ti,omap4470-bandgap",
+ .data = (void *)&omap4470_data,
+ },
+#endif
/* Sentinel */
{ },
};
diff --git a/drivers/staging/omap-thermal/omap-bandgap.h b/drivers/staging/omap-thermal/omap-bandgap.h
index 8b9883d..6d442fe 100644
--- a/drivers/staging/omap-thermal/omap-bandgap.h
+++ b/drivers/staging/omap-thermal/omap-bandgap.h
@@ -422,4 +422,14 @@ int omap_bandgap_set_sensor_data(struct omap_bandgap *bg_ptr, int id,
void *data);
void *omap_bandgap_get_sensor_data(struct omap_bandgap *bg_ptr, int id);
+#ifdef CONFIG_OMAP4_THERMAL
+extern const struct omap_bandgap_data omap4430_data;
+extern const struct omap_bandgap_data omap4460_data;
+extern const struct omap_bandgap_data omap4470_data;
+#else
+#define omap4430_data NULL
+#define omap4460_data NULL
+#define omap4470_data NULL
+#endif
+
#endif
diff --git a/drivers/staging/omap-thermal/omap4-thermal.c b/drivers/staging/omap-thermal/omap4-thermal.c
new file mode 100644
index 0000000..fa9dbcd
--- /dev/null
+++ b/drivers/staging/omap-thermal/omap4-thermal.c
@@ -0,0 +1,259 @@
+/*
+ * OMAP4 thermal driver.
+ *
+ * Copyright (C) 2011-2012 Texas Instruments Inc.
+ * Contact:
+ * Eduardo Valentin <eduardo.valentin@...com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include "omap-thermal.h"
+#include "omap-bandgap.h"
+
+/*
+ * OMAP4430 has one instance of thermal sensor for MPU
+ * need to describe the individual bit fields
+ */
+static struct temp_sensor_registers
+omap4430_mpu_temp_sensor_registers = {
+ .temp_sensor_ctrl = OMAP4430_TEMP_SENSOR_CTRL_OFFSET,
+ .bgap_tempsoff_mask = OMAP4430_BGAP_TEMPSOFF_MASK,
+ .bgap_soc_mask = OMAP4430_BGAP_TEMP_SENSOR_SOC_MASK,
+ .bgap_eocz_mask = OMAP4430_BGAP_TEMP_SENSOR_EOCZ_MASK,
+ .bgap_dtemp_mask = OMAP4430_BGAP_TEMP_SENSOR_DTEMP_MASK,
+
+ .bgap_mode_ctrl = OMAP4430_TEMP_SENSOR_CTRL_OFFSET,
+ .mode_ctrl_mask = OMAP4430_SINGLE_MODE_MASK,
+
+ .bgap_efuse = OMAP4430_FUSE_OPP_BGAP,
+};
+
+/* Thresholds and limits for OMAP4430 MPU temperature sensor */
+static struct temp_sensor_data omap4430_mpu_temp_sensor_data = {
+ .min_freq = OMAP4430_MIN_FREQ,
+ .max_freq = OMAP4430_MAX_FREQ,
+ .max_temp = OMAP4430_MAX_TEMP,
+ .min_temp = OMAP4430_MIN_TEMP,
+ .hyst_val = OMAP4430_HYST_VAL,
+ .adc_start_val = OMAP4430_ADC_START_VALUE,
+ .adc_end_val = OMAP4430_ADC_END_VALUE,
+};
+
+/*
+ * Temperature values in milli degree celsius
+ * ADC code values from 530 to 923
+ */
+static const int
+omap4430_adc_to_temp[OMAP4430_ADC_END_VALUE - OMAP4430_ADC_START_VALUE + 1] = {
+ -38000, -35000, -34000, -32000, -30000, -28000, -26000, -24000, -22000,
+ -20000, -18000, -17000, -15000, -13000, -12000, -10000, -8000, -6000,
+ -5000, -3000, -1000, 0, 2000, 3000, 5000, 6000, 8000, 10000, 12000,
+ 13000, 15000, 17000, 19000, 21000, 23000, 25000, 27000, 28000, 30000,
+ 32000, 33000, 35000, 37000, 38000, 40000, 42000, 43000, 45000, 47000,
+ 48000, 50000, 52000, 53000, 55000, 57000, 58000, 60000, 62000, 64000,
+ 66000, 68000, 70000, 71000, 73000, 75000, 77000, 78000, 80000, 82000,
+ 83000, 85000, 87000, 88000, 90000, 92000, 93000, 95000, 97000, 98000,
+ 100000, 102000, 103000, 105000, 107000, 109000, 111000, 113000, 115000,
+ 117000, 118000, 120000, 122000, 123000,
+};
+
+/* OMAP4430 data */
+const struct omap_bandgap_data omap4430_data = {
+ .features = OMAP_BANDGAP_FEATURE_MODE_CONFIG |
+ OMAP_BANDGAP_FEATURE_POWER_SWITCH,
+ .fclock_name = "bandgap_fclk",
+ .div_ck_name = "bandgap_fclk",
+ .conv_table = omap4430_adc_to_temp,
+ .expose_sensor = omap_thermal_expose_sensor,
+ .remove_sensor = omap_thermal_remove_sensor,
+ .sensors = {
+ {
+ .registers = &omap4430_mpu_temp_sensor_registers,
+ .ts_data = &omap4430_mpu_temp_sensor_data,
+ .domain = "cpu",
+ .slope = 0,
+ .constant = 20000,
+ .slope_pcb = 0,
+ .constant_pcb = 20000,
+ .register_cooling = omap_thermal_register_cpu_cooling,
+ .unregister_cooling = omap_thermal_unregister_cpu_cooling,
+ },
+ },
+ .sensor_count = 1,
+};
+/*
+ * OMAP4460 has one instance of thermal sensor for MPU
+ * need to describe the individual bit fields
+ */
+static struct temp_sensor_registers
+omap4460_mpu_temp_sensor_registers = {
+ .temp_sensor_ctrl = OMAP4460_TEMP_SENSOR_CTRL_OFFSET,
+ .bgap_tempsoff_mask = OMAP4460_BGAP_TEMPSOFF_MASK,
+ .bgap_soc_mask = OMAP4460_BGAP_TEMP_SENSOR_SOC_MASK,
+ .bgap_eocz_mask = OMAP4460_BGAP_TEMP_SENSOR_EOCZ_MASK,
+ .bgap_dtemp_mask = OMAP4460_BGAP_TEMP_SENSOR_DTEMP_MASK,
+
+ .bgap_mask_ctrl = OMAP4460_BGAP_CTRL_OFFSET,
+ .mask_hot_mask = OMAP4460_MASK_HOT_MASK,
+ .mask_cold_mask = OMAP4460_MASK_COLD_MASK,
+
+ .bgap_mode_ctrl = OMAP4460_BGAP_CTRL_OFFSET,
+ .mode_ctrl_mask = OMAP4460_SINGLE_MODE_MASK,
+
+ .bgap_counter = OMAP4460_BGAP_COUNTER_OFFSET,
+ .counter_mask = OMAP4460_COUNTER_MASK,
+
+ .bgap_threshold = OMAP4460_BGAP_THRESHOLD_OFFSET,
+ .threshold_thot_mask = OMAP4460_T_HOT_MASK,
+ .threshold_tcold_mask = OMAP4460_T_COLD_MASK,
+
+ .tshut_threshold = OMAP4460_BGAP_TSHUT_OFFSET,
+ .tshut_hot_mask = OMAP4460_TSHUT_HOT_MASK,
+ .tshut_cold_mask = OMAP4460_TSHUT_COLD_MASK,
+
+ .bgap_status = OMAP4460_BGAP_STATUS_OFFSET,
+ .status_clean_stop_mask = OMAP4460_CLEAN_STOP_MASK,
+ .status_bgap_alert_mask = OMAP4460_BGAP_ALERT_MASK,
+ .status_hot_mask = OMAP4460_HOT_FLAG_MASK,
+ .status_cold_mask = OMAP4460_COLD_FLAG_MASK,
+
+ .bgap_efuse = OMAP4460_FUSE_OPP_BGAP,
+};
+
+/* Thresholds and limits for OMAP4460 MPU temperature sensor */
+static struct temp_sensor_data omap4460_mpu_temp_sensor_data = {
+ .tshut_hot = OMAP4460_TSHUT_HOT,
+ .tshut_cold = OMAP4460_TSHUT_COLD,
+ .t_hot = OMAP4460_T_HOT,
+ .t_cold = OMAP4460_T_COLD,
+ .min_freq = OMAP4460_MIN_FREQ,
+ .max_freq = OMAP4460_MAX_FREQ,
+ .max_temp = OMAP4460_MAX_TEMP,
+ .min_temp = OMAP4460_MIN_TEMP,
+ .hyst_val = OMAP4460_HYST_VAL,
+ .adc_start_val = OMAP4460_ADC_START_VALUE,
+ .adc_end_val = OMAP4460_ADC_END_VALUE,
+ .update_int1 = 1000,
+ .update_int2 = 2000,
+};
+
+/*
+ * Temperature values in milli degree celsius
+ * ADC code values from 530 to 923
+ */
+static const int
+omap4460_adc_to_temp[OMAP4460_ADC_END_VALUE - OMAP4460_ADC_START_VALUE + 1] = {
+ -40000, -40000, -40000, -40000, -39800, -39400, -39000, -38600, -38200,
+ -37800, -37300, -36800, -36400, -36000, -35600, -35200, -34800,
+ -34300, -33800, -33400, -33000, -32600, -32200, -31800, -31300,
+ -30800, -30400, -30000, -29600, -29200, -28700, -28200, -27800,
+ -27400, -27000, -26600, -26200, -25700, -25200, -24800, -24400,
+ -24000, -23600, -23200, -22700, -22200, -21800, -21400, -21000,
+ -20600, -20200, -19700, -19200, -18800, -18400, -18000, -17600,
+ -17200, -16700, -16200, -15800, -15400, -15000, -14600, -14200,
+ -13700, -13200, -12800, -12400, -12000, -11600, -11200, -10700,
+ -10200, -9800, -9400, -9000, -8600, -8200, -7700, -7200, -6800,
+ -6400, -6000, -5600, -5200, -4800, -4300, -3800, -3400, -3000,
+ -2600, -2200, -1800, -1300, -800, -400, 0, 400, 800, 1200, 1600,
+ 2100, 2600, 3000, 3400, 3800, 4200, 4600, 5100, 5600, 6000, 6400,
+ 6800, 7200, 7600, 8000, 8500, 9000, 9400, 9800, 10200, 10600, 11000,
+ 11400, 11900, 12400, 12800, 13200, 13600, 14000, 14400, 14800,
+ 15300, 15800, 16200, 16600, 17000, 17400, 17800, 18200, 18700,
+ 19200, 19600, 20000, 20400, 20800, 21200, 21600, 22100, 22600,
+ 23000, 23400, 23800, 24200, 24600, 25000, 25400, 25900, 26400,
+ 26800, 27200, 27600, 28000, 28400, 28800, 29300, 29800, 30200,
+ 30600, 31000, 31400, 31800, 32200, 32600, 33100, 33600, 34000,
+ 34400, 34800, 35200, 35600, 36000, 36400, 36800, 37300, 37800,
+ 38200, 38600, 39000, 39400, 39800, 40200, 40600, 41100, 41600,
+ 42000, 42400, 42800, 43200, 43600, 44000, 44400, 44800, 45300,
+ 45800, 46200, 46600, 47000, 47400, 47800, 48200, 48600, 49000,
+ 49500, 50000, 50400, 50800, 51200, 51600, 52000, 52400, 52800,
+ 53200, 53700, 54200, 54600, 55000, 55400, 55800, 56200, 56600,
+ 57000, 57400, 57800, 58200, 58700, 59200, 59600, 60000, 60400,
+ 60800, 61200, 61600, 62000, 62400, 62800, 63300, 63800, 64200,
+ 64600, 65000, 65400, 65800, 66200, 66600, 67000, 67400, 67800,
+ 68200, 68700, 69200, 69600, 70000, 70400, 70800, 71200, 71600,
+ 72000, 72400, 72800, 73200, 73600, 74100, 74600, 75000, 75400,
+ 75800, 76200, 76600, 77000, 77400, 77800, 78200, 78600, 79000,
+ 79400, 79800, 80300, 80800, 81200, 81600, 82000, 82400, 82800,
+ 83200, 83600, 84000, 84400, 84800, 85200, 85600, 86000, 86400,
+ 86800, 87300, 87800, 88200, 88600, 89000, 89400, 89800, 90200,
+ 90600, 91000, 91400, 91800, 92200, 92600, 93000, 93400, 93800,
+ 94200, 94600, 95000, 95500, 96000, 96400, 96800, 97200, 97600,
+ 98000, 98400, 98800, 99200, 99600, 100000, 100400, 100800, 101200,
+ 101600, 102000, 102400, 102800, 103200, 103600, 104000, 104400,
+ 104800, 105200, 105600, 106100, 106600, 107000, 107400, 107800,
+ 108200, 108600, 109000, 109400, 109800, 110200, 110600, 111000,
+ 111400, 111800, 112200, 112600, 113000, 113400, 113800, 114200,
+ 114600, 115000, 115400, 115800, 116200, 116600, 117000, 117400,
+ 117800, 118200, 118600, 119000, 119400, 119800, 120200, 120600,
+ 121000, 121400, 121800, 122200, 122600, 123000, 123400, 123800, 124200,
+ 124600, 124900, 125000, 125000, 125000, 125000
+};
+
+/* OMAP4460 data */
+const struct omap_bandgap_data omap4460_data = {
+ .features = OMAP_BANDGAP_FEATURE_TSHUT |
+ OMAP_BANDGAP_FEATURE_TSHUT_CONFIG |
+ OMAP_BANDGAP_FEATURE_TALERT |
+ OMAP_BANDGAP_FEATURE_MODE_CONFIG |
+ OMAP_BANDGAP_FEATURE_POWER_SWITCH |
+ OMAP_BANDGAP_FEATURE_COUNTER,
+ .fclock_name = "bandgap_ts_fclk",
+ .div_ck_name = "div_ts_ck",
+ .conv_table = omap4460_adc_to_temp,
+ .expose_sensor = omap_thermal_expose_sensor,
+ .remove_sensor = omap_thermal_remove_sensor,
+ .sensors = {
+ {
+ .registers = &omap4460_mpu_temp_sensor_registers,
+ .ts_data = &omap4460_mpu_temp_sensor_data,
+ .domain = "cpu",
+ .slope = OMAP_GRADIENT_SLOPE_4460,
+ .constant = OMAP_GRADIENT_CONST_4460,
+ .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4460,
+ .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4460,
+ .register_cooling = omap_thermal_register_cpu_cooling,
+ .unregister_cooling = omap_thermal_unregister_cpu_cooling,
+ },
+ },
+ .sensor_count = 1,
+};
+
+/* OMAP4470 data */
+const struct omap_bandgap_data omap4470_data = {
+ .features = OMAP_BANDGAP_FEATURE_TSHUT |
+ OMAP_BANDGAP_FEATURE_TSHUT_CONFIG |
+ OMAP_BANDGAP_FEATURE_TALERT |
+ OMAP_BANDGAP_FEATURE_MODE_CONFIG |
+ OMAP_BANDGAP_FEATURE_POWER_SWITCH |
+ OMAP_BANDGAP_FEATURE_COUNTER,
+ .fclock_name = "bandgap_ts_fclk",
+ .div_ck_name = "div_ts_ck",
+ .conv_table = omap4460_adc_to_temp,
+ .expose_sensor = omap_thermal_expose_sensor,
+ .remove_sensor = omap_thermal_remove_sensor,
+ .sensors = {
+ {
+ .registers = &omap4460_mpu_temp_sensor_registers,
+ .ts_data = &omap4460_mpu_temp_sensor_data,
+ .domain = "cpu",
+ .slope = OMAP_GRADIENT_SLOPE_4470,
+ .constant = OMAP_GRADIENT_CONST_4470,
+ .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4470,
+ .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4470,
+ .register_cooling = omap_thermal_register_cpu_cooling,
+ .unregister_cooling = omap_thermal_unregister_cpu_cooling,
+ },
+ },
+ .sensor_count = 1,
+};
--
1.7.7.1.488.ge8e1c
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